CN107543989A - Sampling open-phase is lost based on electric energy meter and judges the abnormal method of line loss - Google Patents
Sampling open-phase is lost based on electric energy meter and judges the abnormal method of line loss Download PDFInfo
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- CN107543989A CN107543989A CN201710825093.5A CN201710825093A CN107543989A CN 107543989 A CN107543989 A CN 107543989A CN 201710825093 A CN201710825093 A CN 201710825093A CN 107543989 A CN107543989 A CN 107543989A
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Abstract
The present invention relates to lose sampling open-phase based on electric energy meter to judge the abnormal method of line loss, belong to technical field of electric power, method in the present invention is analyzed the voltage acquisition data at critical point or user's phase three-wire three or three-phase and four-line electric energy meter, define the ratio with rated voltage, abnormal occurrence number, the multiple qualifications in line loss per unit section of affiliated taiwan area or circuit are as basis for estimation, comprehensive analysis quickly is carried out to gathered datas such as each phase voltages of electric energy meter, and eliminating two kinds of circuit power-off and two-phase electricity consumption can not judge that electric energy meter loses sampling open-phase and causes the abnormal situation of line loss, can precisely it filter out because electric energy meter caused by connection box of electric energy meter mistake or artificial stealing etc. loses sampling open-phase, strong data supporting is provided for field check personnel, improve the operating efficiency of line loss improvement.
Description
Technical field
The invention belongs to technical field of electric power, is related to the method for judging that line loss is abnormal, and in particular to based on electric energy meter decompression
The disconnected method for mutually judging that line loss is abnormal.
Background technology
Existing technology judges that foundation condition is single during line loss exception, i.e., the gathered data of electric energy meter voltage occurs once different
Often it is assumed that to lose sampling open-phase, do not cause a large amount of electric energy meter decompressions, electric energy meter abnormal with collection mistake, line outage by abnormal
The many factors such as number, line related or the public line loss per unit for becoming taiwan area consider, and cause the most of exception filtered out simultaneously
Line loss per unit is not influenceed, adds field check personnel's workload, reduces the operating efficiency of professional.
The content of the invention
The present invention compensate for the shortcomings that prior art, there is provided loses sampling open-phase based on electric energy meter and judges the abnormal side of line loss
Method, line loss caused by this method accurately determines whether electric energy meter mistake sampling open-phase by relevant parameter is abnormal, greatly reduces inspection
Person works' amount is looked into, reduces the operating efficiency of professional.
The present invention concrete technical scheme be：
Sampling open-phase is lost based on electric energy meter and judges the abnormal method of line loss, this method is at the critical point of filtering collection mistake, used
The energy data at family, exclude due to the exceptional sample of harvester failure, exclude to exist tear open table, change the user data of surface low journey with
And by checking metering method, rated voltage electric current, the mode of connection of electric energy meter in User Profile information, exclude files on each of customers record
Carried out on the basis of the problem of entering mistake, key point is that described method carries out line loss exception using electric energy meter gathered data
Judgement operation, the judgement operating process is as follows：
The voltage acquisition data at critical point or user's phase three-wire three or three-phase and four-line electric energy meter are analyzed, if any
The voltage value of one phase is less than the 80% of electric energy meter rated voltage, and any one phase or two-phase occurrence number 6 in a consecutive days
More than secondary, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated circuit line loss per unit is not in 0-5% sections, i.e.,
It is judged as that electric energy meter loses sampling open-phase and causes line loss abnormal；Otherwise, line loss is without exception, and operation terminates.
Described electric energy meter is disconnected mutually not to include following two situations：A) during line outage caused by break phase；B) user's two-phase
Disconnected phase caused by during electricity consumption.
3 pieces of electric energy meters simultaneously be present with separate voltage in described situation a), including under single line is that electric energy meter is specified
The 80% of voltage, and in a consecutive days any one phase occurrence number more than 6 times situation.
The beneficial effects of the invention are as follows：The present invention quickly can carry out comprehensive point to gathered datas such as each phase voltages of electric energy meter
Analysis is, it is specified that ratio, abnormal occurrence number, line loss per unit section multiple qualifications of affiliated taiwan area or circuit with rated voltage
As basis for estimation, can precisely filter out because electric energy meter caused by connection box of electric energy meter mistake or artificial stealing etc. loses sampling open-phase,
Strong data supporting is provided for field check personnel, improves the operating efficiency of line loss improvement.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the inventive method.
Embodiment
It is an important component in aggregation of data analysis platform that electric energy meter, which loses sampling open-phase, aggregation of data analysis platform structure
Data mining and analysis system of the frame on power information acquisition system, sales service application system, critical point electric energy system.Profit
The gathered data provided with power information acquisition system and critical point electric energy system, become with reference to sales service application system neutral and close
System, become family relation, critical point and files on each of customers and operation flow modification information, by electric energy meter current voltage, collecting device etc.
Monitored on-line, comprehensive analysis and intelligent diagnostics, metering device decompression open phase fault can be positioned accurately, in time, stealing triggers
Circuit, taiwan area line loss it is abnormal, it is ageing to improve business, reduces operating loss, reduces customer complaint risk.
The present invention relates to losing sampling open-phase based on electric energy meter to judge the abnormal method of line loss, this method is to gather mistake in filtering
Critical point, the energy data of user, exclude due to the exceptional sample of harvester failure, exclude to exist and tears table open, changes surface low journey
User data and metering method, rated voltage electric current, the mode of connection by checking electric energy meter in User Profile information, are excluded
Carried out on the basis of the problem of files on each of customers typing mistake, described method carries out line loss exception using electric energy meter gathered data
Judgement operation.
Specific embodiment, as shown in figure 1, carrying out data inspection first and removing wrong data, then gathered for user
Data are analyzed, and are judged whether it is that data acquisition device breaks down, if there is failure, are then terminated sentencing for line loss exception
It is disconnected, if do not broken down, customer service flow and archives are checked, judge whether flow or archives problem, if it is,
Then terminate the abnormal judgement of line loss, if it is not, then check circuit and user power utilization situation, judge whether line outage or
Person user's two-phase electricity consumption situation, if it is, can not judge that electric energy meter loses sampling open-phase and causes line loss abnormal under both of these case, need
Terminate the abnormal judgement of line loss, also include wherein in the case of line outage simultaneously same in the presence of 3 pieces of electric energy meters under single line
Separate voltage for any one phase occurrence number in 80% and a consecutive days of electric energy meter rated voltage more than 6 times situation, such as
Fruit is not the situation of line outage or user's two-phase electricity consumption, then carrying out electric energy meter mistake sampling open-phase causes the abnormal judgement of line loss,
Judge comprising the following steps that for operation：
The voltage acquisition data of the phase three-wire three or three-phase and four-line electric energy meter of critical point or user are analyzed, if appointing
The voltage value of what phase is less than the 80% of electric energy meter rated voltage, and any one phase or two-phase occurrence number in a consecutive days
More than 6 times, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated circuit line loss per unit is not in 0-5% sections, i.e.,
It is judged as that electric energy meter loses sampling open-phase and causes line loss abnormal；Otherwise, line loss is without exception, and operation terminates；Table 1 is to critical point or user
Line loss abnormal user number under different Rule of judgment is used during the voltage acquisition data analysis of phase three-wire three or three-phase and four-line electric energy meter
Measure contrast table；
Table 1
As shown in Table 1, impose a condition be less than electric energy meter rated voltage for voltage value 70%, at more than 6 times, filters out
Line loss abnormal user taiwan area quantity is more, through spot check, it is found that wherein redundancy is more (i.e. actual is that line loss is normal), accuracy
It is low；Impose a condition be less than electric energy meter rated voltage for voltage value 90%, at more than 6 times, filters out line loss abnormal user platform
Area's quantity is more, through spot check, it is found that wherein redundancy is more (i.e. actual is that line loss is normal), accuracy is low；Impose a condition for
Voltage value is less than the 80% of electric energy meter rated voltage, and at more than 5 times, it is more to filter out line loss abnormal user taiwan area quantity, through existing
Field selective examination, it is found that wherein redundancy is more (i.e. actual is that line loss is normal), accuracy is low；Impose a condition and be less than electricity for voltage value
Can table rated voltage 80%, at more than 7 times, it is more to filter out line loss abnormal user taiwan area quantity, through spot check, finds wherein
Redundancy is more (i.e. actual is that line loss is normal), and accuracy is low；Impose a condition and be less than electric energy meter rated voltage for voltage value
80%, at more than 6 times, filter out that line loss abnormal user taiwan area quantity is normal, and through spot check, discovery is line loss abnormal user
Taiwan area, accuracy are high.
The present invention quickly can carry out comprehensive analysis to gathered datas such as each phase voltages of electric energy meter, it is specified that and rated voltage
Ratio, abnormal occurrence number, the multiple qualifications in the line loss per unit section of affiliated taiwan area or circuit as basis for estimation, can be accurate
Filter out because electric energy meter caused by connection box of electric energy meter mistake or artificial stealing etc. loses sampling open-phase, be provided with for field check personnel
The data supporting of power, improve the operating efficiency of line loss improvement.
Claims (3)
1. losing sampling open-phase based on electric energy meter judges the abnormal method of line loss, this method is in the critical point of filtering collection mistake, user
Energy data, exclude due to the exceptional sample of harvester failure, exclude to exist tear open table, change surface low journey user data and
By checking metering method, rated voltage electric current, the mode of connection of electric energy meter in User Profile information, files on each of customers typing is excluded
Carried out on the basis of the problem of mistake, it is characterised in that described method carries out line loss exception using electric energy meter gathered data
Judgement operation, the judgement operating process is as follows：
The voltage acquisition data at critical point or user's phase three-wire three or three-phase and four-line electric energy meter are analyzed, if any phase
Voltage value be less than the 80% of electric energy meter rated voltage, and in a consecutive days any one phase or two-phase occurrence number 6 times with
On, while affiliated taiwan area line loss per unit is not in 0-9% sections or affiliated circuit line loss per unit is not in 0-5% sections, that is, judges
Losing sampling open-phase for electric energy meter causes line loss abnormal；Otherwise, line loss is without exception, and operation terminates.
2. according to claim 1 judge the abnormal method of line loss based on electric energy meter mistake sampling open-phase, it is characterised in that described
Electric energy meter disconnected mutually do not include following two situations：A) during line outage caused by break phase；B) caused by during the electricity consumption of user's two-phase
Disconnected phase.
3. according to claim 1 judge the abnormal method of line loss based on electric energy meter mistake sampling open-phase, it is characterised in that described
Situation a) in, including simultaneously in the presence of 3 pieces of electric energy meters with 80% that separate voltage is electric energy meter rated voltage under single line, and
The situation of any one phase occurrence number more than 6 times in one consecutive days.
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| CN201710825093.5A CN107543989B (en) | 2017-09-14 | 2017-09-14 | Method for judging line loss abnormity based on voltage loss and phase loss of electric energy meter |
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| CN201710825093.5A CN107543989B (en) | 2017-09-14 | 2017-09-14 | Method for judging line loss abnormity based on voltage loss and phase loss of electric energy meter |
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Cited By (6)
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| CN109142830A (en) * | 2018-08-15 | 2019-01-04 | 国网山东省电力公司青岛供电公司 | Stealing detection method based on power information acquisition system big data |
| CN109212451A (en) * | 2018-09-26 | 2019-01-15 | 深圳供电局有限公司 | No-voltage fault monitoring method and device based on three-phase and four-line meter equipment |
| CN110346661A (en) * | 2019-05-23 | 2019-10-18 | 广西电网有限责任公司 | A kind of method and system of user's electric voltage exception automatic detecting |
| CN111965585A (en) * | 2020-08-11 | 2020-11-20 | 云南电网有限责任公司电力科学研究院 | Electric energy meter abnormity judgment method |
| CN112147406A (en) * | 2020-09-28 | 2020-12-29 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Online monitoring system for transformer area line loss |
| CN112990676A (en) * | 2021-03-03 | 2021-06-18 | 国网河北省电力有限公司 | Method and device for remotely verifying type of three-phase electric energy meter in operation based on voltage information |
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| CN112147406A (en) * | 2020-09-28 | 2020-12-29 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Online monitoring system for transformer area line loss |
| CN112990676A (en) * | 2021-03-03 | 2021-06-18 | 国网河北省电力有限公司 | Method and device for remotely verifying type of three-phase electric energy meter in operation based on voltage information |
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